Shitty PM, I have it in some interior decorative plants and still fighting it.
Happy growings.!
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@JoeCrowe teaches how to rid your garden of WPM. Sulfur. Try it.
Peace
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Sure, if anyone has questions about powdery mildew just ask. Shit is easy to finish off.
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Where’re you located? I have SEVERAL Strains/Varieties bred by an Oregon-based Collective. Finishes Mid to Late September, bred to withstand the PNW’s Seasonal Rains. If something like that interest ya, holler!! SS/BW…mister 
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Sure is. Thanks. Great tip. Easier to get rid of pm than spider mites. Way easier
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A teaspoon of powdered sulfur per gallon of water sprayed on your plants will get rid of it in one shot. Permanently. Do two sprays a few days or a week apart to be safe.
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I have micronized sulfur… Have to try.
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Your going to get some burn make sure you shake off as much access sulpher spray as you can.If it sits in the little leaf pockets in little pools it will concentrate the burn there and the stuff that hangs on the leaf tips.It won’t be that bad just annoying if your going for instagram pictures.It’s better to have a littl burn than a little PM .That shit is the devil
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I have read that sulfur can be used other way:. Taking the plant and putting in small container with some sulfur burner, and the gases that emanates also eliminate pm.
BUT the temperature is critical, if much heat then it causes toxic fumes. I don’t remember where I read that, if I find it I will update this. Sorry.
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I didn’t have any issues spraying before lights out. No burn.
Seems like a burner is easier…
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A sulfur vaporizer will definitely finish off the mildew, but my caution is this:
The vapors will literally coat everything in the space.
If you spray it on, the mess is localized and you can easily clean it up later.
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That burner will coat things but that coating will be eating up any PM spores that got left behind.I think some of us cure the problem on site but it gets reintroduced by spores that we’re floating around and stuck to shit and fell at just the right time and hit the wind from the fan.Dirty fans are another thing I was cleaning out one of my tower fans and I was like holy shit look at all the buildup in this thing just the right place to hold a spore and shoot it out at a random moment of glory for the bastard I blow all mine out outside now and spray the non electronic parts with spray .Never did a burner myself so I could be wrong here.I use sprays of safers sulpher myself and spray my tent and fans down with Mold and mildew remover with plant out and tent wiped down and dried before plant goes in been doing this for a bit now and my purple kush is still PM free with the last sulpher spray 2 days before pistils popped 9 days into a two week flip before flowers showed I grow.I imagine that burner vapor would get into a lot more places to get at those spores but you would have to wonder what would that sulpher vapor do to your LEDs,Intake fan and filter and any power strips you would have.Plus if it’s indoors your whole house will smell like Andre the giant blew a huge fart.I’ll bet that will linger for a bit.
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I have a co worker that loves hard boiled eggs. I’m very familiar with Andre style farting:rofl:
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Powdered sulfur is great stuff. It kills bugs and is a necessary mineral. It lowers the pH but that’s an easy enough fix. A lot of “skunky” weed needs sulfur to create the thiols, the same chemical found in skunks, hops, onions, garlic and even coffee beans sometimes. Thiol - Wikipedia.
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@Herrsquidward No doubt sulfur aids terpene development. Gypsum has high sulfur content and raises soil ph. I bet if the two were mixed a 6.5 ph could be reached…
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That makes sense. Gypsum is calcium sulfate. I used to be a plasterer by trade (I use “trade” loosely, as I was never anymore than an apprentice). I’ve done stucco, concrete, drywall and old-school interior plastering (that’s very rare, as drywall has supplanted the 2-3 coat interior work), and even cornice once. I’m sure you can see how masonry and cannabis cultivation can overlap in a few places.
One thing most people don’t understand is plaster and Portland cement need water to “set”, and there is a difference between “setting” and “drying.” If it dries before it sets, it’ll turn back to dust. In fact, you can completely submerge plaster and cement and they’ll set underwater.
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The “setting” of the concrete is a chemical reaction, which requires water.
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currently repairing a carport that an Amazon driver took down.
Same with plaster. Cement (not concrete, which is cement, rocks and sand) is basically limestone and clay superheated together. It also has some iron oxide and gypsum. The best way I’ve heard it explained is cement is basically pre-fired clay, just add water.
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I remember this. They were a prop 215 collective and they got busted even though they said they were within their legal canopy limits. The law limited the canopy square footage of a grow, not the yields. the prop 215 community was pissed.
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